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<B><A HREF="SIN.html">SIN(3)</A></B>		       FreeBSD Library Functions Manual 		<B><A HREF="SIN.html">SIN(3)</A></B>


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<H2>NAME</H2><PRE>
     <B>sin</B>, <B>sinf</B> - sine functions


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<H2>SYNOPSIS</H2><PRE>
     <B>#include</B> <B>&lt;math.h&gt;</B>

     <I>double</I>
     <B>sin</B>(<I>double</I> <I>x</I>)

     <I>float</I>
     <B>sinf</B>(<I>float</I> <I>x</I>)


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<H2>DESCRIPTION</H2><PRE>
     The <B>sin</B>() and the <B>sinf</B>() functions compute the sine of <I>x</I> (measured in ra-
     dians).  A large magnitude argument may yield a result with little or no
     significance.


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<H2>RETURN VALUES</H2><PRE>
     The <B>sin</B>() and the <B>sinf</B>() functions return the sine value.


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<H2>SEE ALSO</H2><PRE>
     <B><A HREF="acos.html">acos(3)</A></B>,  <B><A HREF="asin.html">asin(3)</A></B>,  <B><A HREF="atan.html">atan(3)</A></B>,  <B><A HREF="atan2.html">atan2(3)</A></B>,  <B><A HREF="cos.html">cos(3)</A></B>,  <B><A HREF="cosh.html">cosh(3)</A></B>,  <B><A HREF="math.html">math(3)</A></B>,
     <B><A HREF="sinh.html">sinh(3)</A></B>,  <B><A HREF="tan.html">tan(3)</A></B>,	<B><A HREF="tanh.html">tanh(3)</A></B>


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<H2>STANDARDS</H2><PRE>
     The <B>sin</B>() function conforms to ISO 9899: 1990 (``ISO C'').

BSD				April 19, 1991				     1
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